﻿using System;
using System.Collections.Generic;
using System.Text;

namespace System.Runtime.CompilerServices
{
    ///<summary>
    /// .Net 2.0下使用扩展方法
    ///</summary>
    [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Method)]
    public sealed class ExtensionAttribute : Attribute
    {
    }
}
